...but I see the Bluefruit EZ-key is discontinued. Is there a replacement? Or suggestions of an alternative way I can send either Midi signals or keystrokes to my Mac using Bluetooth? Would love to have 6 or so buttons.

Same here. I posed the question in another thread about a month ago thinking Adafruit was active on these forums to answer questions. I wonder why they discontinued this product without any replacement. Anyway Adafruit, please chime in!

Kinda interesting coincidence that everyone is asking about this at the same time with similar use cases. I came here to ask the same thing and found this thread. My use case is similar to some previously stated here. I wanted to use it to build a "stomp box" that would send keyboard strokes to my laptop in order to trigger event's in software running on the laptop that may not be midi compatible. Kind of a shame it's been discontinued :(. Is there a way to emulate it's functionality using one of the BT LE "Friends" such as https://www.adafruit.com/product/2633?